Science and Technology Assignment

Science and Technology Assignment Jillian & Marin
p.s. we didn't finish it
The following assignment must be completed on Google documents.
When finished, the Google document must be embedded into your wiki. See “How to Embed a Google Document” on Mr. Wiebe’s Wiki
A:= Answer
Pressure in Fluids
Make sure you do Questions 1to4 on page 174 and Questions 1to 3 on page 181. Answer in
complete sentences below.
Answer the following questions in your own words!

1. What is hydraulic power? A: Power that is derived from the force or energy of moving water.
2. What is pneumatic power? A: Compressed air power.
3. Give one example for #1 and #2. #1 A: HOPSON (simulation tool) #2 A: Air Drill
4. What is a hydraulic system in our bodies? A: Heart
   1. What does the heart do in this system? A: It pumps blood through the body.
   2. Explain the systole and diastole pressure in blood pressure. Use your own words! Systole A: When the heart contracts and pumps blood into the ventricles./Diastole A: The time when the heart relaxes and refills with blood.
   3. What is a normal blood pressure? A: Considered normal at 120/80.
   4. What happens if you have high blood pressure for long periods of time? This is not in the text book. Find you’re answer and include your source with your answer. A: It could cause things from heart problems to vision problems and even problems with thinking. Source: eHow.com & LifeClinic.com
   5. Explain how blood moves up your leg (you guessed it… in your own words). Include picture found on page 180. A: Blood moves up your leg when the valves open and let the blood flow through.
5. What is a Pneumatic system in our bodies? A: Lungs
   1. What is going on when your ears “pop”? A: The pressure from gaining or losing altitude makes the eardrum pop.
   2. Where is eardrum located in your ear? A:
   3. Explain what is happening in your body when you swallow and when you yawn. This is not found in your text book. Try it and see what you come up with. A: Our bodies make us yawn to get more oxygen or to remove carbon dioxide build up.
6. Explain how your cartisian diver went up and down in the bottle. Draw a Labeled diagram that helps your explanation. A: The cartesian diver went down because it got pressurized. It went up because the water went up into the eyedropper.
7. Explain the result of the “wholly bottle”. Include a labeled diagram or picture to help you explanation. If you use a source other than your own picture you must note where is came from. A: There is a small hole for too much water which makes it pressurized. With more holes the air can go out and make it less pressurized.
8. Find 5 hydraulic systems that happen in everyday life.

NameBrake	Picture	Description. What does it do? In your own words.The brakesstop the carby transferingthe force from your foot to a car's brakes through a fluid.	Where did you find it?howstuffworks.com
Car fuel pump

1. Find 5 pneumatic systems that happen in everyday life.

Name	Picture	Description. What does it do? In your own words.	Where did you find it?